Oil sands battle between Canada and EU

Canada is now one of world's energy superpowers.

Over the past two decades, changes in technology and the
rising cost of oil have left it with so much recoverable oil in the
sands, rocks and clay of the province of Alberta that it is now believed
to hold the third largest reserves on earth - after Saudi Arabia and
Venezuela.

To increase that share it must gain global acceptance of the heavy, sticky and, some say, more polluting oil it has found.

For Canada's government, the world has no choice - despite its climatic consequences.

"You can turn off your lights and freeze in the dark, the
alternative is to use the energy, which of course you are using,
everybody is using," says Joe Oliver, Canada's minister for natural
resources.